Question

An atom of an element has 10 electrons. Can it form an ion? Give reason for your answer.

Answer 1

Answer:

22

Explanation:

The total number of protons and neutrons in the nucleus is called mass number of the atom. It is generally represented by th letter A.

Mass Number(A) = Number of Protons + Number of Neutrons

As given, the atom of an element contains 10 protons and 12 neutrons , therefore,

mass number = 10 + 12

So, the mass number of the element is 22.

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Answer 2

NEON - NOBLE GAS CONFIGURATION -

• An atom of an element has 10 electrons forming a stable electronic configuration.
• The valence electrons in the atom will be so the element will have high ionization energy.
• The element shows a noble configuration and is named NEON in the periodic table.
• It cannot attain anionic and cationic forms because of its completely filled octet.
• The ionization energy is 2080 KJ/mol which is second to the value of the helium atom.